mcs/class/System/Mono.Net.Security/MonoTlsStream.cs

   1 //
   2 // MonoTlsStream.cs
   3 //
   4 // Author:
   5 //       Martin Baulig <martin.baulig@xamarin.com>
   6 //
   7 // Copyright (c) 2015 Xamarin, Inc.
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining a copy
  10 // of this software and associated documentation files (the "Software"), to deal
  11 // in the Software without restriction, including without limitation the rights
  12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13 // copies of the Software, and to permit persons to whom the Software is
  14 // furnished to do so, subject to the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be included in
  17 // all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25 // THE SOFTWARE.
  26
  27 #if SECURITY_DEP
  28 #if MONO_SECURITY_ALIAS
  29 extern alias MonoSecurity;
  30 #endif
  31
  32 #if MONO_SECURITY_ALIAS
  33 using MonoSecurity::Mono.Security.Interface;
  34 #else
  35 using Mono.Security.Interface;
  36 #endif
  37 #endif
  38
  39 using System;
  40 using System.IO;
  41 using System.Net;
  42 using System.Net.Sockets;
  43 using System.Net.Security;
  44 using System.Threading.Tasks;
  45 using System.Security.Authentication;
  46 using System.Security.Cryptography.X509Certificates;
  47 using System.Security.Principal;
  48 using System.Security.Cryptography;
  49
  50 namespace Mono.Net.Security
  51 {
  52         class MonoTlsStream
  53         {
  54                 readonly IMonoTlsProvider provider;
  55                 readonly HttpWebRequest request;
  56                 readonly NetworkStream networkStream;
  57
  58                 IMonoSslStream sslStream;
  59                 WebExceptionStatus status;
  60
  61                 internal HttpWebRequest Request {
  62                         get { return request; }
  63                 }
  64
  65                 internal IMonoSslStream SslStream {
  66                         get { return sslStream; }
  67                 }
  68
  69                 internal WebExceptionStatus ExceptionStatus {
  70                         get { return status; }
  71                 }
  72
  73                 internal bool CertificateValidationFailed {
  74                         get; set;
  75                 }
  76
  77 #if SECURITY_DEP
  78 //              readonly ChainValidationHelper validationHelper;
  79                 readonly MonoTlsSettings settings;
  80
  81                 public MonoTlsStream (HttpWebRequest request, NetworkStream networkStream)
  82                 {
  83                         this.request = request;
  84                         this.networkStream = networkStream;
  85
  86                         settings = request.TlsSettings;
  87                         provider = request.TlsProvider ?? MonoTlsProviderFactory.GetProviderInternal ();
  88                         status = WebExceptionStatus.SecureChannelFailure;
  89
  90                         /*validationHelper =*/ ChainValidationHelper.Create (provider.Provider, ref settings, this);
  91                 }
  92
  93                 internal Stream CreateStream (byte[] buffer)
  94                 {
  95                         sslStream = provider.CreateSslStream (networkStream, false, settings);
  96
  97                         try {
  98                                 sslStream.AuthenticateAsClient (
  99                                         request.Host, request.ClientCertificates,
 100                                         (SslProtocols)ServicePointManager.SecurityProtocol,
 101                                         ServicePointManager.CheckCertificateRevocationList);
 102
 103                                 status = WebExceptionStatus.Success;
 104                         } catch (Exception ex) {
 105                                 status = WebExceptionStatus.SecureChannelFailure;
 106                                 throw;
 107                         } finally {
 108                                 if (CertificateValidationFailed)
 109                                         status = WebExceptionStatus.TrustFailure;
 110
 111                                 if (status == WebExceptionStatus.Success)
 112                                         request.ServicePoint.UpdateClientCertificate (sslStream.InternalLocalCertificate);
 113                                 else {
 114                                         request.ServicePoint.UpdateClientCertificate (null);
 115                                         sslStream = null;
 116                                 }
 117                         }
 118
 119                         try {
 120                                 if (buffer != null)
 121                                         sslStream.Write (buffer, 0, buffer.Length);
 122                         } catch {
 123                                 status = WebExceptionStatus.SendFailure;
 124                                 sslStream = null;
 125                                 throw;
 126                         }
 127
 128                         return sslStream.AuthenticatedStream;
 129                 }
 130 #endif
 131         }
 132 }